Lower blade guard for circular saw



FIG. 1 is a right side view of the present new design for a lower blade guard for circular saw;

FIG. 2 is a front right perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is left side view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a front view thereof.

The broken lines showing various features of a circular saw are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a lower blade guard for circular saw, as shown and described. 